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For the Inventor, By the Inventor

Freeport, IL, United States of America

Berol Corporation


USPTO Granted Patents = 102

% Expired Patents = 2.0

Trademarks = 33

Forward Citations = 1,258

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90 inventors (with patents filed for the assignee):

goldMedal Charles E Bain (10 out of 48 patents)

silverMedal Jean L Spencer (8 out of 35 patents)

bronzeMedal Paul Metaxatos (8 out of 38 patents)

4.  David C Harris (8 out of 14 patents)

5.  Scott E Stropkay (7 out of 64 patents)

6.  Chad E Davis (6 out of 14 patents)

7.  Gilius A Gaska (6 out of 10 patents)

8.  Steven H Demsien (6 out of 7 patents)

9.  Antonio J Belton (6 out of 32 patents)

10.  Neville E Andrews (5 out of 18 patents)

11.  Steffen Koury (5 out of 13 patents)

12.  Christa R Walter (5 out of 5 patents)

13.  Gil Gaska (5 out of 5 patents)

14.  Jayson J Serrault (5 out of 5 patents)

15.  Pawel Czubarow (4 out of 17 patents)


Core Competencies:
Correction Tape Dispenser
Erasable Inks
Marker
Writing Implement
Highlighter
Supply Box
Board Eraser
Clip for Writing Instrument
Transfer Tape Dispenser
Document Tray
Caps for Writing Instruments
Fluid Delivery System

102 patents:

1. RE40631 - Correction tape dispenser (2009-02-02),
2. 6986809 - Erasable inks, writing instruments, and methods (2006-01-17),
3. D508948 - Marker (2005-08-30),
4. D507600 - Marker cap (2005-07-19),
5. D503280 - Supply box (2005-03-29),
6. D501077 - School supply box (2005-01-25),
7. D497185 - Writing implement container (2004-10-13),
8. 6789975 - Pen (2004-09-14),
9. D492966 - Arch document tray (2004-07-14),
10. 6749676 - Erasable inks, writing instruments, and methods (2004-06-15),
11. D490109 - Marker (2004-05-19),
12. D489262 - Holder for a spray bottle with sponge (2004-05-05),
13. 6681933 - Writing utensil case (2004-01-27),
14. D485579 - Side of file bin (2004-01-21),
15. D485312 - Literature container (2004-01-14),
Company Overview
Berol Corporation, headquartered in Freeport, Illinois, specializes in the development and manufacturing of writing instruments. The company is known for its innovative products, including correction tape dispensers, erasable inks, markers, highlighters, and various writing implements. Berol also produces essential accessories such as supply boxes and board erasers, catering to both educational and professional markets. With a focus on enhancing the writing experience, Berol continues to explore advancements in design and functionality within the writing instrument sector.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

102 Patents

#1 in Freeport, IL

#214 in Illinois

#3,722 in US

#7,648 in the World

Freeport, IL (US)
Freeport, IL, United States of America

Berol Corporation

Forward Citations = 1,258

90 inventors:

goldMedal Charles E Bain (10 out of 48 patents)

silverMedal Jean L Spencer (8 out of 35 patents)

bronzeMedal Paul Metaxatos (8 out of 38 patents)

4.  David C Harris (8 out of 14 patents)

5.  Scott E Stropkay (7 out of 64 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Berol Corporation. Retrieved from https://idiyas.com/company/berol

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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